caswell



@einen tats ignite-t @ffice R. B. CASIVEL'L, OF` PALME-R, MASSACHUSETTS. Letter-s .Pfam No. 65,723, dated June 11, 1867.

IMPROVED BLANKS POB. GALKS 0F HORSE-SHOES.

TO ALL WHOM I'I MAY CONCERN:

Be it known -that I, R. B. CASWELL, of Palmer, Hampden county, Commonwealth of"'Massachusetts, have invented a new and useful Improved Process of Forming Steel for Toe-Calks of Horse-Shoes; and I do hereby declare that the following is a full and exact 4description thereof', reference being had .to'ftlie accompanying drawings, and to the letters of reference marked thereon. In the drawings- Figures 1 and 4 are end views of my invention.

Figure 2, a plan view ot' the same; and

Figure 3, a diagram of the roller used in forming the steel.

This invention consists in forming bai-s of steel in such shape that by merely cutting o the proper lengths toe-calks are formed ready to be welded to the shoe.

In order to accomplish this, I sink dies into an upper and low'er roller A and B, which correspond in shape to the section of steel shown in igs. 1 and 4. Thus, we will suppose that the red line drawn across the centre of the figure represents the line where the circumferential faces of the rollers meet. Now this line divides the steel equally between the upper and lower rollers, and'eaclrone would have a groove sunk in it corresponding to one-half of thesectiou of steel. These grooves are, however, of course curved so as to coincide with the circumference of the rollers. The steel when formed by these rollers consists of two long wedges joined together at their apexe's, each having a number of projections, a a a, on one edge of their bases. These projections are formed at equal distances apart, thc distances between them being the proper length of a toe-calli. They are formed by the rollers having corresponding cavities in the sides of their grooves, which leave these points upon the bars when they are rolled out, and are for the purpose of assisting'the welding process by being driven into the toe of the. shoe when the calli is attached. j In fig. el is shown a form for a summer calli, which consists in making the wedge much blunter than the winter calk, but is formed substantially in tlie manner as the latter.

The advantages I obtain by so forming the steel are that I put the stock in the blacksmiths hands in the most convenient form for his work, whether left in bars or cut off by machinery previously. Besides this,`.in cutting oi` the calks, two calks can be cut oil" at one operation, saving almost half thelabor of that part of the work, and the projections a a a upon the calks leave them in the best shape for joining to the shoe byl the process of welding. VBesides this, by forming the bars double in the manner shown, the same operationot` rolling turns out double the amount of s/teel, properly formed, as would be the case if the bars were rolled singly, thus enabling the manufacturers toincrcase largely their productions, without increasing their expenses in proportion. New, having described my invention, what I claim asnew, and desire to secure by Letters Patent, is As a new article of manufacture, bars of steel formed for toe-calks substantially in thc manner herein described.

R. B. CASWELL.

Witnesses:

EDWARD H. HYDE, R. F. HYDE. 

